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Proof step 25 from proof isobj-addobj-04 (previous step)

sk .fs = mkfs(class0, ty, fieldvar), fis .keys = instfields(class), sk ∈ fis, validfieldinits(fis, st), sk ∈ instfields(class), is_fskey(sk) ⊦ r = jvmref, okval(fis[sk], ty)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 24:
sk = fs ', fs = mkfs(class0, ty, fieldvar), fis .keys = instfields(class), sk ∈ fis, validfieldinits(fis, st), sk ∈ instfields(class), is_fskey(sk) ⊦ r = jvmref, okval(fis[sk], ty)

Rule argument

[speclemmaarg: ,is_fskey(sk) → (fs = sk .fs ↔ sk = fs ') ,[sk, fs] → [sk, fs] ,T ,storekey , ,elim-03 ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ is_fskey(sk) → (fs = sk .fs ↔ sk = fs ')])], [EXTRATERMS : (sk, fs)]]